Question

If log 28=log 4 + log x what is the vaule of x

Answer 1

x is 7

according to the log rule

log (mn) = log m + log n

then n or x must be a multiple of 4 which gives the value 28.

so we simply divide 28 by 4 which gives 7.

good luck

Answer 2

log28=log4+logx

log28-log4=logx

log(28/4) =logx

log (7) = logx

7 = x